megalocardia

例句：

1. 1. The patient's heart rate was extremely high,causing a megalocardia.
   患者的心率极高，导致巨心症。
2. 2. The doctor diagnosedthe patient with megalocardia andadvised him to seek medical attention immediately.
   医生诊断出患者患有巨心症，并建议他立即就医。
3. 3. In somerare cases, megalocardia can lead to seriouscomplications such as heart failure.
   在一些罕见的情况下，巨心症可能导致严重的并发症，如心力衰竭。